Harman T603 – specifications
Series: Other models
Build year not documented · Data origin: Reference work (Wikipedia/Wikibooks) · sources
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The Harman T603 is a tractor from Harman. The engine is rated at 45 kW.
Propulsion comes from MFWD.
It runs on diesel; the engine is water-cooled. Within the range, rated power spans from 45 to 74 kW; with 45 kW, the T603 sits at the bottom end. The next one up is the T903 with 66 kW.
Harman T903: water-cooled Perkins diesel tractor with engageable front-axle drive (MFWD), 89 hp/66 kW, manufactured in South Korea
The Harman T903 tractor is, according to the available data, built in South Korea and fitted with an engine from the British manufacturer Perkins, which is used as a supplied power unit by numerous tractor builders worldwide. MFWD denotes a mechanically engageable front-axle drive that increases pulling power on loose ground.
Read on 3 more paragraphs
The T903 is powered by a water-cooled Perkins diesel engine producing 89 hp, or 66 kW. The machine therefore falls into the mid power class of agricultural tractors, suited to farms with larger areas and heavier mounted implements, without yet reaching the class of large six-cylinder field tractors.
A Perkins diesel engine is regarded in agricultural machinery as a proven, widely used unit with good availability of parts and servicing, regardless of which manufacturer builds the vehicle around it. A tractor of this output with an engageable front-axle drive is built for tillage, driving heavier mounted implements through the pto shaft and hauling larger trailed loads.
When buying a T903, the condition of the Perkins engine matters, in particular oil consumption and running noise, along with the function of the front axle and its engagement clutch. Also worth checking are the radiator and coolant hoses, the clutch and gearbox for wear noises, and the brakes; parts for the Perkins engine are usually readily available, less so manufacturer-specific components.
Sources: SpecCodex-Register: Kennwerte des Modells Harman T903, Harman (manufacturer)
Technical data
Engine
| Engine make | Caterpillar/Perkinscorrect |
|---|---|
| Fuel | dieselcorrect |
| Power | 60 hp (45 kW)correct |
| Cooling | water-cooledcorrect |
Drivetrain and chassis
| Drive | selectable four-wheel drivecorrect |
|---|
Origin and approval
| Plant | South Koreacorrect |
|---|
Frequently asked questions
How much power does the Harman T603 have?
The Harman T603 delivers 60 hp.
What to check before buying
- Check the hour meter against the service records — a replaced instrument is the most common gap.
- Compare the data plate and chassis number with the papers.
- Load the hydraulics and watch for sag.
- Ask about parts availability for this build year — the running costs hang on it.
A general list for this type of machine — no substitute for an inspection or an appraiser.
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This page carries 12 individual figures for this model. They come from 1 recorded source; every figure can be traced there. What we cannot document is not here — we leave gaps open rather than estimate them.
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Other models in this series
Sources: Tractor & Construction Plant Wiki (CC BY-SA 3.0) (retrieved August 2026) · Values adopted and presented in our own form; changes from the source are possible. · Data sources and cross-checks
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